public class J10121 {
    public static void main(String[] args) {
        for (int i = 1000; i <= 2000; i++) {
            if(i % 4 == 0)
                System.out.println(i);
            if(i % 100 == 0){
                if(i % 400 == 0)
                    System.out.println(i);
            }



        }
    }


}
